Alternative Titles:Huledrengen Rai, Rai-luolapoika, Nolan, enfant des cavernes, Rai, a dzsungel fia, ڕیو، کوڕی ئەشکەوت, Ryu, il ragazzo delle caverne, Genshi Shonen Ryuu, Genshi shōnen Ryū, 원시소년 류우, Chłopiec z Parku Jurajskiego, Jaskiniowy chłopiec, Tao, el cavernícola
First Air Date: Oct 30, 1971Last Air date: Mar 25, 1972Season: 1 SeasonEpisode: 22 EpisodeRuntime: 25 minutesQuality: HDIMDb: 5.80 / 10 by 6 usersPopularity: 14.412Language: Japanese